mcp.rast {adehabitat} | R Documentation |
mcp.rast
converts a polygon map to a raster map of class
asc
.
mcp.rast(poly, w, border=c("include", "exclude"))
poly |
a data frame with 2 columns giving the coordinates of a polygon object |
w |
an object of class kasc , or of class asc |
border |
a character string indicating what happens when the
center of the pixel is located exactly on the limit of the polygon
("include" indicates that the pixel is considered to be
inside the polygon). |
The raster map is needed to pass the format for the output raster object to the function.
Returns an object of class asc
.
Clement Calenge clement.calenge@oncfs.gouv.fr
data(puechabon) toto <- puechabon$kasc loc <- puechabon$locs ## gets the coordinates of the relocations for the wild boar #1 wb1 <- loc[loc$Name == "Chou",] wb1 <- cbind(wb1$X, wb1$Y) nbpol <- chull(wb1) xycoord <- wb1[nbpol,] ## rasterization of wb1 tutu <- mcp.rast(xycoord, toto) image(tutu) polygon(xycoord, lwd = 2)